How many days does the waxing and waning phase of the moon last on average? *

Answers

Answer 1

Answer:

7.38 days.

Explanation:


Related Questions

Which is a homogenous mixture?


1. ceasar salad

2. pre-cooked pizza

3. coffee in a cup

4. different color beads in a bowl

Answers

Answer:

ceasar said is a homogeneous mixture

Answer:

ceasar salad

PLEASE SOMEONE HELPP

Answers

Answer:

D

Explanation:

why is diamond hard​

Answers

The outermost shell of each carbon atom has four electrons. In diamond, these electrons are shared with four other carbon atoms to form very strong chemical bonds resulting in an extremely rigid tetrahedral crystal. It is this simple, tightly-bonded arrangement that makes diamond one of the hardest substances on Earth.

Answer: Diamond is hard due to its giant covalent lattice and it has many strong covalent bonds.

Explanation:

how much electrons are present in MnO4-

Answers

The correct answer is 5

what is the central dogma of biology? QUICK PLEASE

Answers

Answer:

The central dogma states that the pattern of information that occurs most frequently in our cells is: From existing DNA to make new DNA (DNA replication?) From DNA to make new RNA (transcription) From RNA to make new proteins (translation).

Explanation:

What is the independent variable in this experiment?

Answers

Answer:

D

Explanation:

because it was the variable that was changed in the experiment. distance was controlled and speed changed with time.

3. compounds in which elements are held together by covalent bonds...keeps their own properties
A polar molecule
B. element
C. compound
D. molecule

Answers

The anserr is c that what i think

The number of yeast cells in a laboratory culture increases rapidly initially but levels off eventually. The population is modeled by the function а n = f(t) = 1 + be-0.90 where t is measured in hours. At time t = 0 the population is 30 cells and is increasing at a rate of 24 cells/hour. Find the values of a and b. a = b = According to this model, what happens to the yeast population in the long run? O The yeast population will shrink to 0 cells. The yeast population will stabilize at 270 cells. The yeast population will stabilize at 135 cells. The yeast population will stabilize at 8 cells. O The yeast population will grow without bound.

Answers

Answer:

Explanation:

[tex]n=f(t)= \frac{a}{(1+be^{-.9t})}[/tex]

At t = 0

30 =  [tex]\frac{a}{1 + b }[/tex]

30 + 30 b = a

 [tex]\frac{dn}{dt} =f(t)= \frac{-.9abe^{-.9t}}{(1+be^{-.9t})^2}[/tex]

For t = o

[tex]\frac{dn}{dt} =f(t)= \frac{.9ab}{(1+b)^2}[/tex]

given

24 = [tex]\frac{.9ab}{(1+b)^2}[/tex]

24 = [tex]\frac{30\times.9b }{1+b}[/tex]

24 = 27b / 1 + b

24 + 24 b = 27 b

24 = 3 b

b = 8

a = 30 + 30 x 8 = 270

[tex]n=f(t)= \frac{a}{(1+be^{-.9t})}[/tex]

Put t = infinity

n = a = 270

So at infinite time yeast population will stabilise at number 270 .

POSSIBLE POINTS: 26.67
Match the seasons for the Northern Hemisphere, Winter, Spring Summer, Fall to the different points on the diagram

Answers

Answer:

vv

Explanation:

Point A: Summer

Point B: Fall

Point C: Winter

Point D: Spring

Zinc has an average atomic mass of 65.37 amu. Jack is trying to figure out what the most abundant isotope of zinc is, but he doesn't have access to the internet, so the average atomic mass is the only information he has. Jack decides to made an educated guess as to the most abundant isotope of zinc by assuming there are only two isotopes of zinc. If Jack assumes there are only two isotopes of Zn, what he be most likely to decide is zinc's most abundant isotope?
Question 5 options:

Zinc-64


Zinc-65


Zinc-68


Zinc-66

Answers

Zinc's most abundant isotope : Zinc-65

Further explanation

Isotopes are atoms whose no-atom has the same number of protons while still having a different number of neutrons.

So Isotopes are elements that have the same Atomic Number (Proton)

Atomic mass is the average atomic mass of all its isotopes

In determining the mass of an atom, as a standard is the mass of 1 carbon-12 atom whose mass is 12 amu

Mass atom X = mass isotope 1 . % + mass isotope 2.%

To decide zinc's most abundant isotope, then choose the closest mass number

or we can check the difference with the average mass number, if the value is the smallest, then that isotope has the largest abundant

Zinc-64

[tex]\tt \dfrac{65.37-64}{65.37}=0.021[/tex]

Zinc-65

[tex]\tt \dfrac{65.37-65}{65.37}=0.005[/tex]

Zinc-68

[tex]\tt \dfrac{68-65.37}{65.37}=0.04[/tex]

Zinc-66

[tex]\tt \dfrac{66-65.37}{65.37}=0.009[/tex]

The closest = Zinc-65(the smallest)

Which noble gases is closest to magnesium? On the periodic table? What must happen if a magnesium atom for it to have an electron arrangement similar to that of a noble gas?

Answers

Answer:

Neon and loose electrons

Explanation:

Magnesium has an electron configuration of 2e 8e 2e, and Neon is 2e,8e. For Mg to have a similar electron arrangement it must loose its two valence electrons and make it an ion.

Answer:

Noble neon gas is the closest.

Explanation:

noble Neon  gas

The Magnesium would have to lose two electrons

Which of the following is always involved in a scientific inquiry? A. conducting experiments based on scientific questions B. guessing what would happen instead of doing experiments C. knowing the correct answer before you start D. conducting surveys to ask people's opinions on various subjects​

Answers

Answer:

I'm pretty sure it's a I'd its wrong I'm sorry

Answer:

developing solutions to questions through scientific research

Explanation:

Scientific inquiry involves coming up with questions based on observation and reasoning, conducting experiments based on scientific questions,and developing solutions to questions through scientific research.

I WILL GIVE YOU BRAINLIEST!!!

which sentence uses emitting correctly

A after emitting his mistake, Charlie vowed to make things better.

B Charlie should be emitting an apology.

C Charlie heard birds emitting a very strange sound.

D the emitting sound of an early moring birds woke charlie.

Answers

Answer:

its either A or C

Explanation:

Q) which sentence uses emitting correctly ?

Answer :(c) Charlie heard birds emitting a very strange sound .

Explanation :

Emitting means ' to give off ' , since birds are giving off a strange sound , we say " Charlie heard birds emitting a very strange sound " .

how would you differentiate between acid and bases if the list of their chemical formula is given to you​

Answers

To determine whether a substance is an acid or a base, count the hydrogens on each substance before and after the reaction. If the number of hydrogens has decreased that substance is the acid (donates hydrogen ions). If the number of hydrogens has increased that substance is the base (accepts hydrogen ions).
CAN U HEP ME I HAVE A WLEEP APRAFOY AR I CANT GETA WRIS ODNIT PLEASE HWLP

The first ionization energy of fluorine and iodine

Answers

Answer:

The most electronegative atom, fluorine, is assigned a value of 4.0, and values range down to cesium and francium which are the least electronegative at 0.7. First Ionization Energy of Iodine First Ionization Energy of Iodine is 10.4513 eV.

Explanation:

In the human body, a series of chemical reactions results in the making of energy that is used at both the cellular and organismal levels.

In which course would a person most likely study these chemical reactions?
biochemistry
geochemistry
materials chemistry
physical chemistry

Answers

Answer:

It is A: biochemistry

Explanation: i seen there was no answer so i took a chance and surprisingly got it correct

Answer:

e correct option is all of the above

Explanation:

Ribosomes are cell structures that make

Answers

Ribosomes link amino acids together in the order specified by the codons of messenger RNA (mRNA) molecules to form polypeptide chains.

Ribosomes are cell structures that make protein. They are the primary site of the synthesis of protein. They are made up of protein and RNA.

What are ribosomes?

Ribosomes are cell organelles scattered in the cytoplasm of the cell. They are tiny and round vesicles. They are present in both prokaryotic and eukaryotic cells. Furthermore, they are present freely in the cytoplasm. Ribosomes are also present near the endoplasmic reticulum.

Ribosomes are made up of RNA and protein, and they synthesize the protein in the cell. Ribosomes read the mRNA and by these codes of mRNA, it constitutes amino acids, that grow into a long chain of the protein.

Thus, ribosomes are the parts of cells that produce protein. They serve as the central location for protein production. They are composed of RNA and protein.

To learn more about ribosomes, refer to the link:

https://brainly.com/question/241631

#SPJ6

In what type of inheritance do you see both traits on the same individual, but not
blended?
a. Incomplete Dominance
b. Codominance
c. Both
d. Neither

Answers

B. Codominance .....

Describe the three phases of matter (solid, liquid, and gas) in terms of particle spacing, ability to fill shape and volume of container, energy of particles , and strength of intermolecular forces

Answers

Answer: solids are tense but spread out. Gas is spread out completely and liquid is all together

Explanation:

A procedure calls for 0.250 kg of sugar. Your balance is in ounces. What mass in ounces should be weighed out on this balance?

Answers

Answer:

8.81849

Explanation:

i believe the whole number would be this but usually i round to the second decimal point, i dont know if you could do that in chemistry tho

A student mixed several different 12 mm plastic beads together by mistake. Luckily the beads had different densities. One group of beads had a density of 0.6 g/cm3; the other beads had a density of 1.2 g/ cm3. Describe a method the student can use to sort the beads.

Answers

Answer:

The answer is "Each student will get a glass of water and drop the bead into it  but the beads float 0.6 g / cm3 and slip down to 1.2 g / cm3

".

Explanation:

One's masses would've been dissimilar, even though their width and concentrations were also equal. Whenever the type-A mass is m,  then the type-B mass is 2 m. One should measure then, therefore.  

Water has a 1g / cm^3 density. Although Type A is higher than air, Type B is much more compact. it means will float if they place  it in water type-A where type-B sinks.

I NEED HELP WITH THIS ASAP!!!!!!!!!!!!!

Which chemical equation best represents the Law of Conservation of
Mass?
A. H+0 -> H20
B. H2 + 02 --> H20
C. 2H2 + 02 --> 2H,0
D. H2 + 02 --> 2H,02

Answers

Answer: The answer is B

Explanation:

What is often added to the water used when reacting the group 1 metals with
water?
Universal indicator
An acid
An alkali
Oil
What is produced when sodium reacts with water?
Sodium oxide and water

Answers

Answer:

an acid.

sodium oxide and water

If anyone have the answers to this plz tell me

Answers

Explanation:

hey can I please get the passage so that I can help you

What is the activation energy of a reaction?

Answers

Answer:

The activation energy for the forward reaction is the amount of free energy that must be added to go from the energy level of the reactants to the energy level of the transition state. ... Once a reactant molecule absorbs enough energy to reach the transition state, it can proceed through the remainder of the reaction.

Explanation:

Answer: Activation energy is how much energy it takes for a reaction to occur.

Explanation:

How
myny moles are present in 5.6x1022 atoms of Ne? (0.09 moles Ne)
Sot ne10.05

Answers

Answer:

mole = no of atoms/ 6.02E23.... so therefore answer= 5.6E22/6.02E23= 0.093✨

Which of these processes are chemical reactions? Type the correct answer in each box.
Boiling an egg
Crushing spices
veges rotting
chopping veges
dew forming

Answers

boiling an egg

hope this helps

A sample of gas has a volume of 526 mL at 346 mmHg and 35.0°C. Determine the moles of gas.​

Answers

Answer:

The moles of gas is 0.009474 moles.

Explanation:

Given that,

Volume = 526 mL

Pressure = 346 mmHg

Temperature = 35.0°C

We need to calculate the moles of gas

Using formula of ideal gas

[tex]n=\dfrac{PV}{RT}[/tex]

Where, P = pressure

V = volume

R = gas constant

T = temperature

Put the value into the formula

[tex]n=\dfrac{\dfrac{346}{760}\times0.526}{0.08206\times(35+273)}[/tex]

[tex]n=0.009474\ moles[/tex]

Hence, The moles of gas is 0.009474 moles.

can someone explain what radioisotopes are?

Answers

Answer:

A radioisotope is a radioactive isotope.

Explanation:

On the Periodic Table, elements 92 and up are radioactive. So that is Uranium and any higher elements. Remember that radioactive elements love to decay and are dangerous.

Isotopes are different forms of an element. For instance, we could have different amount of neutrons in the same element (same number of protons).

We could have an element like He - 4 vs. He - 6, where He - 4 would have 2 neutrons and He - 6 would have 4 neutrons.

So a radioisotope would be an elemental isotope that is radioactive. A good example of this is Uranium.

We have thousands of different isotopes of Uranium, but 2 are well known: Uranium - 235 and Uranium - 238. Both are the same element with the same amount of protons, but both have a different amount of neutrons.

In dilute aqueous solution, as [H+] increases:
A. pH decreases
B. pOH increases
C. [OH-] decreases

Answers

Answer:

B

Explanation:

The answer is B, I hope this helps you!

Other Questions
3. A store manager reports that the mean grocery bill at her store on a Saturday is between$28.25 and $36.75. To do this, she considered a random sample of customers that Saturday.What was the sample mean? (Remember that the sample mean is the center of the confidenceinterval). What was the margin of error? Chris Fowler borrowed $93,290 on March 1, 2018. This amount plus accrued interest at 8% compounded semiannually is to be repaid March 1, 2028. To retire this debt, Chris plans to contribute to a debt retirement fund five equal amounts starting on March 1, 2023, and for the next 4 years. The fund is expected to earn 7% per annum.How much must be contributed each year by Chris Fowler to provide a fund sufficient to retire the debt on March 1, 2025? Which of the following Amendments did not deal with suffrage (voting):a15thb26th c5thd19th Question 2 of 20Pick one of the following that would be a good topic sentence for a divisionparagraph.O A. You should always eat three meals a day.B. My new puppy is so cute!O C. My family can be categorized by their hometowns.O D. There are three parts to my blood-glucose monitoring kit.SUBMIT Which of the following missions was successful? a. San Sab b. Nacogdoches c. San Xavier d. San Antonio How many total cups of orange paint will this mixture yield? What is the three letter code found in mRNA?A. ThymineB. CytosineC. CodonD. Anti-codon can someone please help me answer this in the next 15 minutes. ill give a brainiest to whoever can help me. tysm if u do!! :)) Why did the U.S. Government break the terms of the Fort Laramie Treaty? How did the development of permanent settlements change the types of buildings that were needed?Settlements encouraged families to live separately to dominate the resources in a crowded village.Settlements required buildings that could hold larger amounts of people for meetings and other gatherings.Settlements were designed with materials that could be taken apart quickly to follow herds in other locations.Settlements were built with wide open spaces to provide ample room for religious and government buildings. What is light dependent stage? How long is each side of a square with a perimeter of 32.28 centimeters? what is the slope of (-3,2) (-5,-2) what is the slope of (7,1) (1,-7) What did the caterpillar have to do to create the curved graphed with a gradually steeper slope? who envented 0 name the person What strategy should be done to provide quality education without discrimination? 1.49Divided by 7.4 rounded to the nearest tenth How many protons are there in a neutral, stable Hydrogen atom that makes up 99.985% of the element? A. 1B.2 C.3D.4E.0 Imagine a glucose molecule entering the cell membrane. Would thatmolecule be able to reach the mitochondria faster if the cell had a smallervolume or a larger volume? Explain. Which statement best explains how Shakespeare transformed the source material described in Part A?In Shakespeare's play, the men are either good or evil by nature; in the source material, they are influenced by outside sources.While Ensign's trickery is driven by his love for the Moor's wife, Iago's plot is driven by his hatred for Cassio and the Moor.Ensign's plot only involves the Moor, while Iago plots to trick Cassio, the Captain.Iago is driven by a sense of duty, while Ensign is motivated by jealousy.